Published January 20, 2014 | Version v1
Journal article Metadata-only

Multiferroicity and magnetoelectric coupling enhanced large magnetocaloric effect in DyFe0.5Cr0.5O3

Creators

  • 1. Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031 (China)
  • 2. High Magnetic Field Laboratory, Chinese Academy of Sciences, Hefei 230031 (China)
  • 3. University of Science and Technology of China, Hefei 230026 (China)

Description

DyFe0.5Cr0.5O3 has been synthesized using a sol-gel method. It exhibits ferroelectricity at the antiferromagnetic ordering temperature TN1∼261 K. Large magnetocaloric effect (MCE) (11.3 J/kg K at 4.5 T) enhanced by magnetoelectric coupling due to magnetic field and temperature induced magnetic transition was observed. Temperature-dependent Raman study shows an anomalous behavior near TN1 in the phonon modes related to the vibration of Dy atoms and stretching of CrO6/FeO6 octahedra, suggesting the ferroelectricity in DyFe0.5Cr0.5O3 is associated with the spin-phonon coupling with respect to both Dy and Cr/Fe ions. These results suggest routes to obtain high-temperature multiferroicity and large MCE for practical applications

Additional details

Identifiers

DOI
10.1063/1.4862665;

Publishing Information

Journal Title
Applied Physics Letters
Journal Volume
104
Journal Issue
3
Journal Page Range
p. 032904-032904.5
ISSN
0003-6951
CODEN
APPLAB

INIS

Country of Publication
United States
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
45101980
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETISM; CHROMATES; COUPLING; DYSPROSIUM COMPOUNDS; ELECTRICAL PROPERTIES; IRON IONS; IRON OXIDES; MAGNETIC FIELDS; MAGNETIC PROPERTIES; PHONONS; RAMAN SPECTROSCOPY; SOL-GEL PROCESS; SPIN; TEMPERATURE DEPENDENCE; THERMODYNAMIC PROPERTIES
Descriptors DEC
ANGULAR MOMENTUM; CHALCOGENIDES; CHARGED PARTICLES; CHROMIUM COMPOUNDS; IONS; IRON COMPOUNDS; LASER SPECTROSCOPY; MAGNETISM; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; QUASI PARTICLES; RARE EARTH COMPOUNDS; SPECTROSCOPY; TRANSITION ELEMENT COMPOUNDS

Optional Information

Notes
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